This inventor holds 2 USPTO granted patents. Top assignee: Other. Active years: 1976-1977.
Company Filing History:
2 out of 834,453 Years Active: 1976-1977
Title: The Innovations of Frederick Charles Frank
Introduction
Frederick Charles Frank is a notable inventor based in Bristol, GB. He has made significant contributions to the field of polymer science, holding 2 patents that showcase his innovative approaches to crystallization processes.
Latest Patents
One of his latest patents focuses on the oriented crystallization of polymers. This invention involves producing crystalline polymer fibrils that have a highly ordered crystalline core surrounded by less ordered crystalline polymer. The process requires the polymer solution to flow through a gauze at a temperature that is below the dissolution temperature but above the crystallization temperature. The flow rate is carefully selected to create a high longitudinal velocity gradient, ideally around 10² sec⁻¹ or greater. Another patent by Frank also addresses the oriented crystallization of polymers, where molten crystallizable polymer is extruded through an orifice. A fixed surface is positioned on the upstream side to create a line of uniaxial extension or a plane of pure shear in the molten polymer. This method allows for the formation of a crystalline core in the melt, making it particularly suitable for extruding continuous filaments with a highly crystalline core.
Career Highlights
Frederick Charles Frank has established himself as a prominent figure in the field of polymer research. His innovative techniques have advanced the understanding of polymer crystallization, leading to improved material properties and applications.
Collaborations
Frank has worked alongside notable colleagues such as Andrew Keller and Malcolm Robert Mackley, contributing to a collaborative environment that fosters innovation and research in polymer science.
Conclusion
Frederick Charles Frank's contributions to polymer crystallization through his patents demonstrate his expertise and commitment to advancing the field. His work continues to influence the development of new materials and processes in polymer science.